In the revolutionary spirit of self-reliance. 

 - Pyongyang :  Foreign Languages Publ. House,  1976. 
 - Among the people .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Tractor industry -- Korea (North)--Tractor industry -- Korea (North)
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Korea (North) -- Economic conditions.--Korea (North) -- Economic conditions.